1. Photon Pressure with an Effective Negative Mass Microwave Mode 

   Rodrigues I.C.; Steele G.A.; Bothner D. (2024)

   Physical Review Letters

   Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics, and photon pressure systems. Here, we engineer a microwave mode in a superconducting LC circuit that mimics the dynamics of a negative mass oscillator, and couple it via photon pressure to a second low-frequency circuit. We demonstrate that the effective negative mass dynamics ...

   Journal Article

2. Diatom and radiolarian biostratigraphy in the Pliocene sequence of ODP Site 697 (Jane Basin, Atlantic sector of the Southern Ocean) 

   Kato Y.; Hernández-Almeida I.; Pérez L.F. (2024)

   Journal of Micropalaeontology

   Bio- and magnetostratigraphic events are essential to construct age models of marine sedimentary sequences for which no other dating methods are available. In this study, we re-visit Ocean Drilling Program (ODP) Leg 113, Hole 697B (drilled in the Jane Basin, the Atlantic sector of the Southern Ocean; 61°48.626′S, 40°17.749′W), to refine diatom and radiolarian biostratigraphy for the early and middle Pliocene, a warm interval of Earth's ...

   Journal Article

3. A tailored decomposition approach for optimization under uncertainty of carbon removal technologies in the EU power system 

   Negri V.; Vázquez D.; Grossmann I.E.; et al. (2024)

   Computers and Chemical Engineering

   The broad portfolio of negative emissions technologies calls for integrated analyses to explore the synergies between them and the power sector, with which they display strong links. These analyses should be conducted at a regional level, considering system uncertainties, assessing local benefits and the impact on carbon removal potential. This study investigates how uncertainty in electricity demand affects the optimal design of integrated ...

   Journal Article

4. Heterogeneous effects of tariff and nontariff trade-policy barriers in quantitative general equilibrium 

   Egger P.H.; Erhardt K. (2024)

   Quantitative Economics

   Structural quantitative work in international economics typically models trade costs as a log-linear function of exogenous trade-policy variables. We propose a structural approach that allows for a nonparametric relationship and for treating tariff and nontariff trade-policy variables as potentially endogenous. The data reject the assumption of log-linearity of trade costs in both tariff- and nontariff-policy variables. We assess the ...

   Journal Article

5. Biased Ising Model Using Two Coupled Kerr Parametric Oscillators with External Force 

   Álvarez P.; Pittilini D.; Miserocchi F.; et al. (2024)

   Physical Review Letters

   Networks of coupled Kerr parametric oscillators (KPOs) are a leading physical platform for analog solving of complex optimization problems. These systems are colloquially known as "Ising machines."We experimentally and theoretically study such a network under the influence of an external force. The force breaks the collective phase-parity symmetry of the system and competes with the intrinsic coupling in ordering the network configuration, ...

   Journal Article

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